Environment-Friendly and Electrically Conductive Belt and Method of Preparing the Same

Abstract

A belt includes a rubber core covered with a cover fabric including conductivity filaments oriented in warp and weft yarn directions. The method of preparing the belt comprises (i) preparing a cover fabric by orienting conductivity filaments in warp and weft yarn directions, and (ii) covering the cover fabric on a rubber core. The belt is environment-friendly because carbon black, which may produce environmentally hazardous substances, is excluded from the belt. The conductivity filaments are oriented in canvas of the belt with a predetermined interval, so that electrical conductivity can be represented on the entire surface of the belt.

1 . A belt comprising a rubber core, wherein the rubber core is covered with a cover fabric including conductivity filaments oriented in warp and weft yarn directions. 
     
     
         2 . The belt of  claim 1 , wherein an interval between the conductivity filaments is within a range of from 0.1 cm to 3 cm. 
     
     
         3 . The belt of  claim 1 , wherein the rubber core further comprises a tension member. 
     
     
         4 . The belt of  claim 1 , further comprising a friction rubber layer provided at one side surface of the cover fabric. 
     
     
         5 . The belt of  claim 3 , wherein the tension member includes at least one member selected from the group consisting of polyester, aramid, nylon, and glass fiber. 
     
     
         6 . The belt of  claim 1 , wherein the rubber core includes at least one member selected from the group consisting of natural rubber, butadiene rubber, styrene butadiene rubber, chloroprene rubber, and ethylene propylene rubber. 
     
     
         7 . The belt of  claim 1 , wherein the rubber core includes at least one member selected from the group consisting of compression rubber, cushion rubber, tension rubber, and friction rubber. 
     
     
         8 . The belt of  claim 1 , wherein the cover fabric includes a cotton fabric, a blend fabric of cotton and polyester, or a blend fabric of cotton and nylon. 
     
     
         9 . The belt of  claim 8 , wherein the cover fabric has a thickness of from 0.3 mm to 1.0 mm. 
     
     
         10 . The belt of  claim 1 , wherein each conductivity filament comprises a stainless steel yarn or a carbon fiber. 
     
     
         11 . The belt of  claim 10 , wherein the conductivity filament comprises a stainless steel yarn. 
     
     
         12 . The belt of  claim 1 , wherein the conductivity filament comprises a mono-filament or a multi-filament. 
     
     
         13 . The belt of  claim 1 , wherein the belt has a V-shape. 
     
     
         14 . The belt of  claim 1 , further comprising a saw tooth. 
     
     
         15 . The belt of  claim 1 , wherein the belt is used for power transmission or a conveyer. 
     
     
         16 . The belt of  claim 1 , wherein the belt has a sectional structure in a shape of an inverse trapezoid. 
     
     
         17 . A method of preparing an electrically conductive belt, comprising:
 (i) preparing a cover fabric by orienting conductivity filaments in warp and weft yarn directions; and   (ii) covering the cover fabric on a rubber core.   
     
     
         18 . The method of  claim 17 , wherein an interval between the conductivity filaments is within a range of from 0.1 cm to 3 cm. 
     
     
         19 . The method of  claim 17 , wherein the rubber core further comprises a tension member. 
     
     
         20 . The method of  claim 17 , further comprising:
 coating a friction rubber layer on one side surface of the cover fabric.   
     
     
         21 . The method of  claim 19 , wherein the tension member comprises at least one member selected from the group consisting of polyester, aramid, nylon, and glass fiber. 
     
     
         22 . The method of  claim 17 , wherein the rubber core comprises at least one member selected from the group consisting of natural rubber, butadiene rubber, styrene butadiene rubber, chloroprene rubber, and ethylene propylene rubber. 
     
     
         23 . The method of  claim 17 , wherein the rubber core comprises at least one member selected from the group consisting of compression rubber, cushion rubber, tension rubber, and friction rubber. 
     
     
         24 . The method of  claim 17 , wherein the cover fabric comprises a cotton fabric, a blend fabric of cotton and polyester, or a blend fabric of cotton and nylon. 
     
     
         25 . The method of  claim 24 , wherein the cover fabric has a thickness of from 0.3 mm to 1.0 mm. 
     
     
         26 . The method of  claim 17 , wherein each conductivity filament includes a stainless steel yarn or a carbon fiber. 
     
     
         27 . The method of  claim 26 , wherein the conductivity filament includes a stainless steel yarn. 
     
     
         28 . The method of  claim 17 , wherein the conductivity filament includes a mono-filament or a multi-filament. 
     
     
         29 . The method of  claim 17 , wherein the belt has a V-shape. 
     
     
         30 . The method of  claim 17 , wherein the belt further comprises a saw tooth. 
     
     
         31 . The method of  claim 17 , wherein the belt has a sectional structure in a shape of an inverse trapezoid.